Added Docker file for serial builds

Author: Rohit-Kakodkar

Dockerfile

@@ -0,0 +1,39 @@
+# Dockerfile to build serial version
+
+FROM gcc/9.5.0
+
+# Install CMake
+RUN echo "Installing CMake..." && \
+    echo "====================" && \
+    echo "" && \
+    apt-get update && \
+    apt-get install -y cmake && \
+    echo "Done."
+
+RUN echo "cmake version:" && \
+    cmake --version && \
+    echo "Done."
+
+# Install Boost 1.73.0
+RUN echo "Installing Boost 1.73.0..." && \
+    echo "==========================" && \
+    echo "" && \
+    apt-get install -y libboost1.73-dev && \
+    echo "Done."
+
+RUN echo "Boost version:" && \
+    echo $(dpkg -s libboost1.73-dev | grep Version) && \
+    echo "Done."
+
+# Install SPECFEM++
+RUN echo "Installing SPECFEM++..." && \
+    echo "========================" && \
+    echo "" && \
+    cmake -S . -B build -D CMAKE_BUILD_TYPE=Release && \
+    cmake --build build && \
+    echo "Done."
+
+# Set environment variables
+ENV PATH="/usr/local/specfempp/build:${PATH}"
+
+CMD ["/bin/bash"]